Computing Chance-Corrected Agreement Coefficients (CAC)
Computing Altman's Benchmark Scale Membership Probabilities
Function for computing the Bipolar Weights
Brennan-Prediger's agreement coefficient among multiple raters (2, 3, ...
Brennan & Prediger's (BP) agreement coefficient for an arbitrary numb...
Brenann-Prediger coefficient for 2 raters
Function for computing the Circular Weights
Conger's generalized kappa coefficient for an arbitrary number of rate...
Computing Fleiss Benchmark Scale Membership Probabilities
Fleiss' agreement coefficient among multiple raters (2, 3, +) when the...
Fleiss' generalized kappa among multiple raters (2, 3, +) when the inp...
Gwet's AC1/AC2 agreement coefficient among multiple raters (2, 3, +) w...
Gwet's AC1/AC2 agreement coefficient among multiple raters (2, 3, +) w...
Gwet's AC1/AC2 coefficient for 2 raters
Function for computing the Identity Weights
Kappa coefficient for 2 raters
Krippendorff's agreement coefficient among multiple raters (2, 3, +) w...
Krippendorff's alpha coefficient for an arbitrary number of raters (2,...
Krippendorff's Alpha coefficient for 2 raters
Computing Landis-Koch Benchmark Scale Membership Probabilities
Function for computing the Linear Weights
Function for computing the Ordinal Weights
Percent agreement coefficient among multiple raters (2, 3, +) when the...
Percent agreement among multiple raters (2, 3, +) when the input data ...
Percent Agreement coefficient for 2 raters
Function for computing the Quadratic Weights
Function for computing the Radical Weights
Function for computing the Ratio Weights
Scott's coefficient for 2 raters
An r function for trimming leading and trealing blanks
Calculates various chance-corrected agreement coefficients (CAC) among 2 or more raters are provided. Among the CAC coefficients covered are Cohen's kappa, Conger's kappa, Fleiss' kappa, Brennan-Prediger coefficient, Gwet's AC1/AC2 coefficients, and Krippendorff's alpha. Multiple sets of weights are proposed for computing weighted analyses. All of these statistical procedures are described in details in Gwet, K.L. (2014,ISBN:978-0970806284): "Handbook of Inter-Rater Reliability," 4th edition, Advanced Analytics, LLC.